Ametrodiplosis thalictricola

The larvae of the midge Ametrodiplosis thalictricola cause galls on the fruits of Common Meadow-rue (Thalictrum flavum). The fruits become swollen and egg-shaped with a thickened wall, they are ribbed and pointed and contain one or two yellow larvae instead of seeds.

Habitat

Where Common Meadow-rue (Thalictrum flavum) is present.

When to see it

Summer and autumn.

Life History

Usually bivoltine. The larva hibernates in the soil and pupates in spring.

UK Status

It appears to be uncommon or under recorded in Britain.

VC55 Status

It appears to be uncommon or under recorded in Leicestershire and Rutland.